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Quality Control of a Geiger Mueller Counter

Quality Control of a Geiger Mueller Counter. Tim Marshel, R.T.,CNMT. Geiger Mueller Counter. Type of survey instrument used in nuclear medicine Is an essential part of an effective radiation safety program Can be used as a personal or laboratory instrument

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Quality Control of a Geiger Mueller Counter

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  1. Quality Control of aGeiger Mueller Counter Tim Marshel, R.T.,CNMT

  2. Geiger Mueller Counter • Type of survey instrument used in nuclear medicine • Is an essential part of an effective radiation safety program • Can be used as a personal or laboratory instrument • Is used to detect levels of radiation

  3. Geiger Mueller Counter

  4. Geiger Mueller Counter

  5. Geiger Mueller Counter

  6. Quality Control • Term is used to describe the routine assessment of an instrument’s performance • There are two types of “QC” done • Accuracy: should be assessed at installation, at least annually, and after repair • Constancy: should be assessed at installation and on a daily basis

  7. Quality Control • Constancy assessments should be done with a long half life source located on the instrument • Exposure rate should be within 10% of the expected reading, if not, GM detector should be recalibrated • Batteries should also be checked prior to each use

  8. The End

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